Today, in a symbolic act, Iranians set fire to the flags of Israel and the United States, as well as an obelisk and a statue of Baal—which they described as a symbol of Satan—in various cities across Iran in response to the release of the Epstein documents.
Linguistically they seem to use a word for “God” but that is about where the similarities seem to end. A quick search shows your theory being a prominent Quota answer which usually isn’t a great indicator of truthfulness, but also it claims Baal and Yahweh being two entirely different polytheistic gods and then Yahweh winning out over time (at least according to some rando on Quota). So even following that line they aren’t the same and Iran isn’t “burning their own God.”